Urn



I May 20, 1941.

J. w. CUNNINGHAM 2,242,969

' URN Q Filed Aug. 19, 19:59

Patented May 20, 1941 URN James W. Cunningham, Haddcn Heights, N. J assignor to Horn and Hardart Baking 00., Philadelphia, Pa, a corporation of New Jersey Application August 19, 1939, Serial No. 290,977

2 Claims.

In the manufacture of urns such as for example, coffee urns, it has been customary to employ a solid one piece bottom. If the water in the water compartment reaches too low a level, the bottom burns out and it has heretofore been necessary to replace the entire bottom.

The urn must be disconnected, returned to the shop; a new bottom sweated in and then, the urn must be reconnected in the battery of urns usually employed in restaurants and hotels. This is an expensive operation.

The bottom usually burns out directly above the gas burner which maintains the heated condition of the water, and if means are provided for the replacement of such portion of the urn, the cost of maintenance can be materially reduced.

In accordance with this invention, if the bottom burns out, a hole is cut in the bottom and a flanged ring having a disc sweated to it is inserted through the bottom and sweated in place. Thereafter, if the water reaches too low a level, the solder around the disc will melt and the disc will drop. It is then only necessary to resweat or replace this small disc.

With the foregoing in view, the object of this invention is to provide a bottom construction for urns which in case the bottom burns out will render it unnecessary to replace the entire bottom.

With the above and other objects in view as will hereinafter clearly appear, my invention comprehends a novel urn and more particularly a novel bottom construction for an urn.

It further comprehends a novel sectional bottom having an outer main section, an intermediate section with a raised portion, and a plate or disc sweated to the intermediate section.

Other novel features of construction and advantage will hereinafter more clearly appear in the detailed description and the appended claims.

For the purpose of illustrating the invention, I have shown in the accompanying drawing a typical embodiment of it, which in practice, will give satisfactory and reliable results. It is, however, to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized, and my invention is not limited to the exact arrangement and organization of these instrumentalities as herein set forth.

Figure 1 is an elevation, partly in section and partly broken away, of an urn embodying my invention.

Figure 2 is a bottom plan view with certain parts removed.

Similar numerals of reference indicate corresponding parts.

Referring to the drawing:

The urn, except for its bottom, may be of any desired or conventional construction, and supported in any desirable manner. As illustrated, the urn is provided with legs I, secured to an outer shell 2 in any desired manner. 3 desi hates a water tank connected in the usual manner at its upper end to the outer shell 2.

4 designates the coffee tank which is secured to the upper end of the outer shell. 5 designates a conventional hinged cover.

The urn has a connection 6 leading from the water space I for reception of a sight gauge, and the tank 3 has a conventional valve controlled outlet 8 for the hot coffee or other liquid which is to be retained in a heated condition.

The tank 3 has a steam coil 9 with a fitting l0 retained in place by a nut H. The water inlet I2 is formed by a fitting secured by fastening devices [3 to deflected portions of the bottom H.

The bottom M has an opening, preferably centrally located, in which an inverted pan shaped ring I5 is inserted, having a bottom opening l6.

l1 designates a removable plate or disc which is soldered or sweated in place as at I8. As illustrated, this plate 11, which forms the inner section of the bottom, is in the form of a disc.

In case the water level is too low, the solder will melt around the plate I! and the plate or disc will drop. To repair the damage, it is only necessary to resolder or resweat the disc I! in place.

I have found in practice that if a disc having a diameter of about one third of the diameter of the bottom I4 is used, very advantageous results are obtained, since in case the water level is too low, only a small part of the bottom has to be replaced, thereby materially reducing the time and cost of repairs.

The plate I! is preferably soldered to the underside of the bottom intermediate section, so that in case the solder melts, the plate will drop.

The lower flange of the intermediate section is soldered or sweated to the main bottom section at Hi.

The intermediate bottom section projects upwardly into the water compartment, so that there is sufficient water left in the water loompartment to prevent injury to the main bottom and the plate or disc will become detached before the main bottom can be damaged.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. An urn forming a Water receiving tank having its bottom portion formed by a. main bottom portion having a centrally disposed aperture, an intermediate inverted pan-shaped, sheet metal portion projecting upwardly through said aperture above the main bottom portion with a top opening and with its marginal portion secured to the main bottom portion, and an inner bottom portion in the form of a substantially flat sheet metal plate soldered at its outer peripheral portion to the under side of said intermediate portion to cover the top opening of the latter.

2. An urn forming a Water receiving tank having its botttom portion formed by a main bottom portion having a centrally disposed aperture, an intermediate inverted pan-shaped, sheet metal portion projecting upwardly through said aperture above the main bottom portion with a top opening and with its marginal portion secured to the main bottom portion, and an inner bottom portion in the form of a sheet metal plate soldered at its outer peripheral portion to the under side of said intermediate portion to cover the top opening of the latter and positioned directly above the source of heat for the urn, said metal plate being of substantially the same thickness as the main bottom portion and the pan shaped portion.

JAMES W. CUNNINGHAM. 

